Oil-purifier.



1. F. ROBERTSON.

' OIL PURIHER.

APPLICATION F1LED )UNE 6.1916.

Patented Apr. 24, 1917.

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IN! NDHRIS FETERS C0 PHO'VU-LIYNO.. WASN'INGmM 0 c 1. F. ROBERTSQN.

OIL PURIFIER.

APPLICATION YFILED JUNE 6. ms.

Patented Apr. 24, 1917.

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m w m N%w h h w a-NVENTOR WITNESSES JOHN vnoia'nmison, or BELLEVU'E,PENNSYLVANIA."

OIL-PURIFIER.

i Sp'ec ification of Letters Patent. Patented Apr 1917,

Application filed June 6, 1916 Serial No. 111L953.

To aZZ wkOmit may concern: I

Beit' known that I, JOHN F. ROBERTSON, a citizen of theUnited States,and resident of Bellevue, in the countyof Allegheny and. State ofPennsylvania, have invented a new and useful Improvement inOil-Purifiers;-

andI do hereby declare the following to be a full, clear, and exactdescription thereof.

My invention'relates to an oil purifier or filter, the object of myinvention'being to providea compact apparatus of this charac v tor whichis simple in construction, and in" which large quantities of oilcan bepurified rapidly while, at the same time, the parts are accessible andcapable ofremoval for purposes of cleaning or repair,rand .withoutinterruption to the general operation of the filter. 1 p 1 My inventioncomprises the novel features hereinafter set forth and claimed.

In the accompanying drawings, Figure 1 is a side elevation, partlybroken away, of?

my improved filter; Fig.v 2 is a plan view with top removed; Fig. '3 isan enlarged section on the line3-3,-Fig. 2; and 4 is an enlarged sectionon the line 44, Fig. 2.

In the drawings, the numeral 2 designates a suitable casing made up ofplates of metal of proper thickness and united to form a strong rigidstructure. Within the casing 2 is the reservoir 3 to receive thedirtyoil.

The oil is delivered to the reservoir 3 through the inlet-pipe 4provided at its upper endwith the strainer 5. .This inletpipe '4 extendsdown within the tank to the I lower end thereof, or what may be termedthe settling compartment 6. r

The reservoir 3 is provided with the steam-jacket 7, which may extendonly for a portion of the height of said reservoirwithin the zonecontaining the oil, and this steam-jacket is supplied with steam fromthe steam inlet-pipe 8. v

The pipe 9 extends downwithin the reservoir 3, said pipe having theconnections 10, 11 and12, with 'the'pipes 13, 14 and 15 connected tosaid connections, respectively, and said pipes being provided with thevalves 16.

These pipes 13, 14 and 15 deliver the oil rising in the pipe9-tothepans17, 18 and 19, respectively. These pans rest upon suitablesupports 20 and are arranged to slide in and out onsaid supports so thatthe pans may be removed independently of each other, as more fullyhereinafter set forth.

The pans are provided with steam-jackets 21 supplied with steam from thepipe 22, which is connected up with the steam-pipe 23 from thesteam-jacket 7 ofthe reservoir 3.

Valves 24 are provided to control the supply of steam to thesteam-jackets of the different pans.

The interiors of the pans are provided with the baffles '25 extending inoppositedirections and overlapping each other, as'indicated in Fig. 1 sothat the oil on entering the pan at one end is compelled to pass in atortuous course from one end of the pan to the other, giving thesediment and foreign matter in the oil an opportunity to settlebeforethe oil finally escapes by the outletpipes 26'. These outlet-pipesdischarge the oil into the filter bags 27 whence the oil drips from saidbags into the clean-oil compa ament 28.

ervoir, and has the movable spout 35 connected thereto. This spoutdelivers into the i funnel 36 at the upper end of the drain pipe 37,leading to the. drain 38." The water mixed with the dirty oil willsettle in the settling compartment, being heavier than the oil and willrise within the ejector-pipe 33, being forced up therein by=the weightof the oil. f

,Goose-necks '39 leading'from the steamjackets of the pans carry off thecondensation, which is deli-vered'into the wastepipe;40. g i The casing'72is provided with the doors v 41 by which access is had to the pans,and i with a door '42by which access is'had to the filter-bags. I Q vThedirty oil is introduced into thepipe 4, passing through the strainer5 and down through saidpipe into the lower end of the reservoir 3. Theoil will rise in the reservoir, the water, as stated, settling to thebottom and being forced up through the pipe 33 to the drain. As the oilrises in-the reservoir 3, it is heated by the steam-j acket 7 and aportion of the dirt or foreign matter will settle in the lower end ofthe reservoir to be drawn off from time to time by the wastepipe 44. Asthe oil rises in the reservoir, it will enter the pipe 9 and will becarried off by the pipes 13, lt and 15 to the pans 17, 18 and 19,respectively. The oil discharged into the pans is retarded in its flowby the battles and is compelled to take a tortuous course, which permitsof the deposit of the dirt in the pans While, at the same time, the oilis heated by the steam-jackets, and this further aids in the deposit ofthe dirt. The oil finally passes by the pipe 26 into the filter-bags 27and thence down into the cleanoil compartment to be drawn off by thepipe 30.

"When it is desired to remove one of the pans for purpose of cleaning,or for other reason, the steam-pipe connection to the water-jackets isdisconnected, and the pan can then be readily removed by withdrawingit.- It should have been stated that the valve 16 is first closed so asto prevent the discharge of the oil from the pipe 15. The pan in thismanner is removed and cleaned or repaired as the case may be, and' isthen re-inserted in its proper position and the steam-pipe connectedthereto, whereupon it is ready for further treatment of the oil. In thismanner, I provide for the removal of the pans independently of eachother, and, by having them arranged in the manner described, this isefi'ected without disturbing the operations in the other pans and, inthis manner, the filter operates continuously even though one or more ofthe pans may be out of operation.

By my apparatus, I provide for the cleaning of a greater quantityof oilin less time while, at the same time, the apparatus is very compact and,due to the heating of the oil by the steam-jackets, the operation ofcleaning the oil is rendered very much more effective and more rapidthereby decreasing the cost and giving a greater saving in oil.

What I claim is:

1. In an oil purifier, the combination with a suitable frame, of areservoir for containing the impure oil, a plurality of settling panssupported in said frame, means for delivering the oil from saidreservoir to said pans, and means for removing said pans independentlyfrom said frame.

2. In an oil purifier, the combination with a suitable frame, of areservoir for the impure oil, a plurality of settling-pans mounted insaid frame one above the other, means for delivering the oil from saidreservoir to said pans, and means for removing said pans independentlyfrom said frame.

Copies of this patent may be obtained for 3. In an oil purifier, thecombination with a suitable frame, of a reservoir for the impure oil, aplurality of settling-pans mounted one above the other in said frame,means for delivering the oil from said reservoir to said pans, and meansfor withdrawing said pans horizontally from said frame the oneindependently of the other.

4. In an oil purifier, the combination with a suitable frame, of areservoir for the impure oil, a plurality of settling-pans mountedtherein, independent means for delivering the oil from said reservoir,and means for removing said pans from said frame independently.

5. In an oil purifier, the combination with a suitable frame, of areservoir for the impure oil, a steam-jacket surrounding said reservoir,a plurality of settling-pans mounted in said frame one above the other,means for delivering the oil from said reservoir to said pans, and meansfor removing said pans independently.

6. In an oil purifier, the combination with a suitable frame, of areservoir for the impure oil, a pipe extending down into said reservoir,a plurality of settling-pans mounted in said frame one above the other,connections from said pipe to each of said pans.

7 In an oil purifier, the combination with a suitable frame, of areservoir for the impure oil, a pipe extending down into said'reservoir,a plurality of settling-pans mounted in said frame one above the other,valve controlled connections from said pipe to each of said pans.

8. In an oil purifier, the combination with a suitable frame, of areservoir for the impure oil, a plurality of settling-pans one above theother mounted in said frame, means for delivering the oil from saidreservoir to each of said pans, an overflow pipe leading from each ofsaid pans, and a filterbag communicating with each of said overfiowpipes.

9. In an oil purifier, the combination with a suitable frame, of areservoir for the impure oil, a plurality of settling-pans mountcdinsaid frame one above the other and independently removable therefrom,means for delivering the oil from said reservoir to each of said pans,and a reservoir for the pure oil overflowing from said settling-pans.

In testimony whereof I, the said JOHN F.

ROBERTSON, have hereunto set my hand.

J OIIN F. ROBERTSON. IVitnesses JOHN F. WILL, IRENE F. GEYER.

five cents each, by addressing the Commissioner of Patents, Washington,D. G.

